#1c3b42 - Royal Neptune color

A deep, muted teal leaning toward a slate blue with subtle green undertones, this color evokes the hush of a forest pond or the shadowed surface of a stormy sea. It reads cool and sophisticated, grounding spaces with quiet depth while remaining richly colored rather than purely dark. Useful as an accent or primary hue in interiors and branding, it pairs beautifully with warm neutrals, brass or copper metallics, soft creams, and energetic accents like coral or ochre.

color #1c3b42

#1c3b42 color RGB value is 28, 59, 66, and the CMYK value is 0.576, 0.106, 0.00, 0.741. Alternative names for that color are: royal neptune, black, darkslategray, blue dianne, outer space, green, darkslategrey.

Color Conversion

Name
Values
CSS
RGB(0-255)
28, 59, 66
rgb(28, 59, 66)
CMYK
0.576, 0.106, 0.00, 0.741
-
sRGB
0.110, 0.231, 0.259
rgb(11% 23.1% 25.9%)
Adobe® 98 RGB compatible
0.172, 0.241, 0.265
color(a98-rgb 0.172 0.241 0.265)
HCT
215, 19.2, 22.9
color(--hct 215 13.2% 22.9%)
HSL
191, 40.4, 18.4
hsl(191 40.4% 18.4%)
HSV
191, 57.6, 25.9
color(--hsv 191 57.6% 25.9%)
HWB
191, 11.0, 74.1
hwb(191 11% 74.1%)
Lab
22.7, -10.2, -8.10
lab(22.7 -10.2 -8.1)
P3
0.140, 0.228, 0.255
color(display-p3 0.14 0.228 0.255)
XYZ D50
0.0297, 0.0372, 0.0433
color(xyz-d50 0.03 0.037 0.043)

Shades

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Tints

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Tones

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Color Harmonies

HEX:#1c3b42
RGB:28 59 66
HSL:191.05deg 40.43% 18.43%
HEX:#42231c
RGB:66 35 28
HSL:11.05deg 40.43% 18.43%

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